# N443DS: Simcox Douglas L S-21

- Status: Valid registration
- Airframe: [Simcox Douglas L S-21](https://openairdocs.org/model/simcox-douglas-l-s-21) (registry code 05643VQ, 2 seats)
- Serial number: S21-001
- Type: Fixed wing single engine
- Engine type: 4 cycle
- Kit: Rans Designs Inc S-21 OUTBOUND
- Certificate issued: July 10, 2026
- Expires: July 31, 2033
- Mode S code: A5561E
- Registered owner: [Simcox Douglas L](https://openairdocs.org/faa-owner/SIMCOX%20DOUGLAS%20L)
- Location: [Taylorsville, KY](https://openairdocs.org/faa-place/KY/Taylorsville)
- Owner type: Individual
- Owner's area on the map: 38.0427° N, 85.3790° W: Placed by OpenAirDocs at the center of ZIP code 40071, within about 6 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=443DS
- Page: https://openairdocs.org/aircraft/N443DS

From the FAA registry file of October 24, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination.

## ADs that may apply (OpenAirDocs): 0 in force

### Matched by airframe (Simcox Douglas L S-21)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N443DS.

## FAA accident and incident reports

None matched to N443DS.

## Service difficulty reports

None filed for this aircraft. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

## STCs that may be installed (OpenAirDocs)

None matched to this aircraft's models.

## Earlier aircraft with N443DS

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N443DS before.

- [Cancelled 2019-01-08](https://openairdocs.org/deregistered/N443DS-2019-01-08): Diamond Aircraft Ind DA 40, S/N 40.1046, built 2009. Exported to Australia. Owner: [Five Star Marketing Inc](https://openairdocs.org/faa-owner/FIVE%20STAR%20MARKETING%20INC), [Raleigh, NC](https://openairdocs.org/faa-place/NC/Raleigh)

## Related

- Other Simcox Douglas L S-21 aircraft: https://openairdocs.org/model/simcox-douglas-l-s-21/aircraft.md

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.